Graphene wave-absorbing film coating as well as preparation method and application thereof

A technology of wave-absorbing film and graphene, applied in radiation-absorbing coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of high price, long delivery cycle, inability to meet the needs of electronic product production, etc. Interference, high permeability, effect of saving manufacturing cost

Inactive Publication Date: 2020-06-16
东莞市鹏威能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The wave-absorbing film made of wave-absorbing materials is generally used in RFID electronic tags, NFC antennas, wireless charging, electromagnetic screen OLED / LCD / EPD, EMI / EMC, etc., and has the functions of preventing reflection and anti-interference. Membranes and their preparation materials are mainly imported, which are expensive and have a long delivery cycle, which cannot meet the production needs of electronic products

Method used

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  • Graphene wave-absorbing film coating as well as preparation method and application thereof
  • Graphene wave-absorbing film coating as well as preparation method and application thereof
  • Graphene wave-absorbing film coating as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The present embodiment provides a graphene wave-absorbing film coating, which comprises the following components in parts by weight:

[0046]

[0047]

[0048] Wherein, the polymer resin is water-based acrylic resin, the auxiliary agent includes an anti-settling agent and a pH regulator, and the mass ratio of the two is 2:1, and the anti-settling agent is DISPARLON AQ-633E, which is produced by Japan Kusumoto Chemical Co., Ltd. The pH regulator is American DOW ANGUS AMP-95.

[0049] Its preparation method comprises the following steps:

[0050] S1. Add the polymer resin, graphene powder, sendust powder, ferrite, iron paste, aluminum powder, additives and deionized water into the mixing tank;

[0051] S2. Place the mixing tank on the disperser to stir, and disperse at a high speed of 800r / min for 30min to prepare a graphene wave-absorbing film coating with a pH value of 8.

Embodiment 2

[0053] A graphene wave-absorbing film coating, in parts by weight, comprises the following components:

[0054]

[0055] Wherein, the polymer resin is a water-based PUA resin, and the auxiliary agent includes an anti-settling agent, a wetting agent, a leveling agent and an anti-foaming agent, a compound of an anti-settling agent, a wetting agent, a leveling agent and an anti-foaming agent. The proportioning ratio is 2:1:1:1, and the anti-settling agent is DISPARLON AQ-633E of Japanese Kumben Kasei; the wetting agent is German BASF Hydropalat WE 3220; the leveling agent is German BYK BYK-333; The defoamer mentioned above is Synthron SF 561, which was created in France.

[0056] Its preparation method comprises the following steps:

[0057] S1. Add the polymer resin, graphene powder, sendust powder, ferrite, iron paste, aluminum powder, additives and deionized water into the mixing tank;

[0058] S2. Place the mixing tank on the disperser to stir, and disperse at a high speed...

Embodiment 3

[0060] A graphene wave-absorbing film coating, in parts by weight, comprises the following components:

[0061]

[0062]

[0063] Wherein, the polymer resin is composed of water-based acrylic resin and water-based PUA resin in a mass ratio of 3:1, and the auxiliary agent includes an anti-sedimentation agent, a wetting agent and a pH regulator, and the compounding ratio of the three is 1. :1:1, the anti-sedimentation agent is DISPARLON AQ-633E of Japanese Kumben Kasei, the wetting agent is German BASF Hydropalat WE 3220, and the pH regulator is American DOW ANGUS AMP-95.

[0064] Its preparation method comprises the following steps:

[0065] S1. Add the polymer resin, graphene powder, sendust powder, ferrite, iron paste, aluminum powder, additives and deionized water into the mixing tank;

[0066] S2. Place the mixing tank on a disperser for stirring, and disperse at a high speed of 1000r / min for 27 minutes to prepare a graphene wave-absorbing film coating with a pH valu...

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PUM

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Abstract

The invention discloses a graphene wave-absorbing film coating and a preparation method thereof. The graphene wave-absorbing film coating comprises the following components by weight: 10-30 parts of polymer resin, 0.05-5 parts of graphene powder, 30-85 parts of iron-silicon-aluminum alloy powder, 30-80 parts of ferrite, 30-80 parts of iron slurry, 1-10 parts of aluminum powder, 1-5 parts of an auxiliary agent, an 2-20 parts of deionized water. The coating is prepared by simply mixing and stirring all the components. The coating takes polymer resin as a carrier, and graphene and a metal wave absorption and shielding material are added. After the coating is applied and dried to form a film, good noise absorption and shielding effects can be achieved.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic wave absorption, and in particular relates to a graphene wave-absorbing film coating and a preparation method and application thereof. Background technique [0002] Absorbing materials are mostly used in stealth technology, heat preservation and energy saving, and human protection. The absorbing material is generally composed of a matrix material and an absorbing medium, which can absorb the electromagnetic wave energy projected on its surface, and convert the electromagnetic wave energy into heat energy or other forms of energy through the dielectric loss of the material. The wave-absorbing film made of wave-absorbing materials is generally used in RFID electronic tags, NFC antennas, wireless charging, electromagnetic screen OLED / LCD / EPD, EMI / EMC, etc., and has the functions of preventing reflection and anti-interference. Membranes and their preparation materials are mainly imported, whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/32C09D133/00C09D175/14B05D3/02
CPCB05D1/28B05D3/0254B05D5/00B05D7/24C08K2003/0812C08K2003/0856C08K2003/2272C08K2201/011C08L2203/20C09D5/32C09D133/00C09D175/14C08K3/042C08K3/08C08K3/22C08L75/14
Inventor 徐彬周仲庆
Owner 东莞市鹏威能源科技有限公司
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